HKAStro vs TT Comm Parent
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HKAStro
This educational app delivers local astronomical news, event updates, and weather forecasts. It includes helpful tools like a polar scope and moon phase tracker for stargazing enthusiasts.
- Local astronomical news
- Event information
- Weather forecasts
- Polar Scope tool
- Moon Phase tracker
- Flashlight feature
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This mobile app is provided by the Hong Kong Astronomical Society, aims to provide users with the latest local astronomical news, activities, weather forecast information, and provides useful features such as Polar Scope, Moon Phase, Flashlight, etc.
TT Comm Parent
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App for TutorTime's Students Parents
Screenshots
Verdict
The clearest difference is update cadence: TT Comm Parent at every 10 days against HKAStro's every 10 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HKAStro ships an update every 10 months, TT Comm Parent every 10 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | HKAStro | TT Comm Parent |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 120 MB | 44 MB |
| Age rating | 4+ | 4+ |
| Developer | Hong Kong Astronomical Society | Tutor Time |
In-app purchases
HKAStro
No in-app purchases
TT Comm Parent
No in-app purchases
